US Mortgage Rates Hit One-Year High Amid Inflation Concerns

US mortgage rates have climbed to their highest level in just over a year, driven by rising long-term Treasury yields as inflation concerns mount. According to Freddie Mac, the average 30-year fixed-rate mortgage rate reached 6.69% as of August 6, 2026, up 0.03 percentage point from the previous week and the highest level since July 31, 2025. The 15-year fixed-rate mortgage averaged 6.01%, down slightly from 6.04% the week prior.

The surge in mortgage rates follows geopolitical tensions in the Middle East, particularly a prolonged blockade of the Strait of Hormuz, which has elevated oil prices and inflation expectations. Rates began climbing from their February lows of around 5% when conflict between the United States and Iran escalated. The 10-year Treasury yield, which serves as a benchmark for mortgage pricing, stood at 4.65% as of mid-August, compared to 3.97% in late February before the conflict began. The 30-year Treasury bond yield reached 5.28% at the end of July, marking its highest level in 19 years since July 2007.

Mortgage rates are influenced by multiple factors including inflation, interest rate expectations, and bond investor sentiment. Higher borrowing costs have direct implications for homebuyers: rate increases add hundreds of dollars monthly to mortgage payments, reducing purchasing power. This constraint has slowed housing sales activity throughout 2026. Some observers note that sustained housing market pressure could carry political implications ahead of the November midterm elections.